Expand this Topic clickable element to expand a topic
Skip to content
Optica Publishing Group

Scintillation of light at two colors

Open Access Open Access

Abstract

Simultaneous measurements were made of the scintillations of red and blue light in the atmosphere. The sources were a He-Ne laser at 633 nm and a He-Cd laser at 422 nm. Several horizontal propagation paths were used, and the strength of turbulence and its inner scale were recorded during the experiments. Weak path-integrated turbulence theory predicts a very high correlation between the scintillations at these two wavelengths. We observed that the correlations were lower than this prediction in strong path-integrated turbulence. The weak turbulence theory consists of a double integral that sums contributions from each position along the path and from each turbulent wavenumber. To include the effects of strong turbulence, we assume that the effectiveness of eddies larger than the transverse coherence length of the field at each path position is reduced.

© 1991 Optical Society of America

PDF Article
More Like This
Air refractive-index measurement using two-color methods

Hirokazu Matsumoto, Yucong Zhu, Ichiro Fujima, and Tadanao O'ishi
WL17 OSA Annual Meeting (FIO) 1991

Simultaneous measurement of laser scintillation and atmospheric turbulence structure parameter and inner scale

Anna Consortini, Fausto Cochetti, James H. Churnside, and Reginald J. Hill
TuFF2 OSA Annual Meeting (FIO) 1990

Axial scintillations of vortex beam

Mikhail Charnotskii
PW3F.2 Propagation Through and Characterization of Atmospheric and Oceanic Phenomena (pcAOP) 2023

Select as filters


Select Topics Cancel
© Copyright 2024 | Optica Publishing Group. All Rights Reserved